Nostr Mail

Remove gatekeepers from email. Use Nostr as transport instead of SMTP between users.

What is Nostr Mail?

Nostr Mail carries ordinary RFC 2822 email over Nostr. Your address is derived from your keys, your messages are gift wrapped end to end, and no provider stands between you and the person you write to. When the other side is not on Nostr, a bridge speaks SMTP on your behalf.

Key Benefits

Decentralized: no single point of failure or control
Censorship-resistant: your messages go through Nostr relays
Privacy-focused: end-to-end encrypted with NIP-59 gift wrapping
Interoperable: works with legacy email via bridges

Architecture Overview

                    NOSTR NATIVE
┌──────────┐                              ┌──────────┐
│  Alice   │ ────── Nostr Relays ──────►  │   Bob    │
│ (Client) │      Kind 1301 + NIP-59      │ (Client) │
└──────────┘                              └──────────┘

                    WITH LEGACY EMAIL
┌──────────┐      ┌────────┐      ┌──────────┐
│  Gmail   │ ───► │ Bridge │ ───► │   Bob    │
│   User   │ SMTP │        │Nostr │ (Client) │
└──────────┘      └────────┘      └──────────┘

Components

Protocol

Bridge

SDK

Client

The email-over-Nostr specification using Kind 1301 events. Learn more

Bidirectional bridge between legacy email (SMTP) and Nostr. Learn more

Dart and JavaScript libraries for building Nostr Mail applications. Learn more

Nmail, the reference client for Android, Linux and the web. Learn more

Try it

Open Nmail nostrmail.org

Quick Links

NIPs Used

NIP	Description	Usage
NIP-01	Basic protocol	Event structure
NIP-05	User discovery	`user@domain` resolution
NIP-09	Event deletion	Deleting emails and labels
NIP-17	Private DM relays	Kind 10050 DM relays
NIP-32	Labeling	Folders, read state, stars
NIP-44	Encryption	Sealing and settings
NIP-59	Gift-wrapped events	End-to-end encryption
NIP-65	Relay list metadata	Relay discovery
NIP-78	Application data	Settings sync

License

This project is licensed under the MIT License.